Bike parts: diagram, names, where to buy and sell

Bike parts are the individual components that make up a bicycle, including the frame, wheels, handlebars, and drivetrain, and they play a crucial role in the performance and customization of bikes. The global bicycle parts market, valued at over US $8 billion, is primarily driven by regions such as North America, Europe, and Asia, with countries like China, the United States, and Germany leading in both production and sales, making it a significant and dynamic industry for enthusiasts and professionals alike.

In this article, we will dive into diagrams of the popular bike types like road, mountain, and electric, then explain each bike part in details, where to buy these parts, where to sell them and where these bike parts are made.

Table of Contents

Bike parts diagram

Bike parts on any bicycle, such as a city bike, include essential components that contribute to its functionality and performance. The frame, located at the core, provides the structural foundation. Attached to the frame are the wheels, which include rims and spokes, essential for movement and stability. The handlebars, positioned at the front, control steering and are connected to the fork, which holds the front wheel. The drivetrain, comprising pedals, cranks, chain, gears, and derailleurs, is situated in the middle and drives the bike forward. Brakes, found on the handlebars and near the wheels, ensure safe stopping. Additionally, the saddle, or seat, is mounted on the seatpost and provides a comfortable riding position. Understanding these basic parts and their locations helps in maintaining and optimizing the bike’s performance.

Bike parts diagram

How many parts are in a bike?

In a bike, there are typically around 30 to 50 individual parts, depending on the complexity and type of bicycle. These bike parts include the frame, fork, handlebars, stem, headset, seatpost, saddle, pedals, crankset, chain, derailleurs, cassette, brakes, wheels (rims, spokes, hubs), tires, tubes, and various nuts, bolts, and cables. Each of these components is necessary for the bike to function properly, ensuring structural integrity, efficient power transfer, control, and safety.

Road bike parts diagram

Road bike parts include essential components that are specifically designed for speed, efficiency, and performance on paved surfaces. The frame, located at the core, provides the structural foundation and is typically lightweight and aerodynamic. Attached to the frame are the wheels, which include rims, spokes, and hubs, essential for smooth and fast movement. The handlebars, positioned at the front, are designed for a low and aerodynamic riding position and are connected to the fork, which holds the front wheel. The drivetrain, comprising pedals, cranks, chain, gears, and derailleurs, is situated in the middle and drives the bike forward efficiently. Brakes, found on the handlebars and near the wheels, ensure precise stopping power. Additionally, the saddle, or seat, is mounted on the seatpost and provides a comfortable riding position for long distances. Understanding these basic parts and their locations helps in maintaining and optimizing the road bike’s performance.

Here’s a detailed labeled diagram of a typical road bike and gravel bike showing all key parts.

Road bike parts diagram

Mountain bike parts diagram

Mountain bike parts include essential components designed to handle rough terrains, provide durability, and ensure rider comfort and control. The frame, located at the core, provides the structural foundation and is typically robust and capable of absorbing shocks. Attached to the frame are the wheels, which include rims, spokes, and hubs, essential for handling rough and uneven surfaces. The handlebars, positioned at the front, offer a wide grip for better control and are connected to the fork, which often includes suspension to absorb impacts from rough terrain. The drivetrain, comprising pedals, cranks, chain, gears, and derailleurs, is situated in the middle and drives the bike forward with precision and power. Brakes, found on the handlebars and near the wheels, ensure reliable stopping power even in wet and muddy conditions. Additionally, the saddle, or seat, is mounted on the seatpost and provides a stable and comfortable riding position. Understanding these basic parts and their locations helps in maintaining and optimizing the mountain bike’s performance.

Here’s a detailed labeled diagram of a typical mountain bike showing all key parts.

Mountain bike parts diagram

Electric bike parts diagram

Electric bike parts include essential components designed to provide power assistance, enhance efficiency, and ensure rider comfort and control. The frame, located at the core, provides the structural foundation and is typically sturdy enough to support additional components such as the battery and motor. Attached to the frame are the wheels, which include rims, spokes, and hubs, essential for smooth movement. The handlebars, positioned at the front, control steering and are connected to the fork, which may include suspension to absorb shocks. The drivetrain, comprising pedals, cranks, chain, gears, and derailleurs, is situated in the middle and drives the bike forward. Additionally, the motor, usually located in the hub or near the crankset, provides power assistance to reduce pedaling effort. The battery, mounted on the frame, powers the motor. Brakes, found on the handlebars and near the wheels, ensure safe stopping. The saddle, or seat, is mounted on the seatpost and provides a comfortable riding position. Understanding these basic parts and their locations helps in maintaining and optimizing the electric bike’s performance.

BMX bike parts diagram

BMX bike parts include essential components designed for durability, agility, and performance in stunts, racing, and off-road riding. The frame, located at the core, provides the structural foundation and is typically compact and strong to withstand high impacts. Attached to the frame are the wheels, which include thick rims, spokes, and hubs, essential for stability and strength during jumps and tricks. The handlebars, positioned at the front, are wide and sturdy to provide better control and leverage for stunts, and are connected to the fork, which holds the front wheel securely. The drivetrain, comprising pedals, cranks, and a single-speed chain, is situated in the middle and drives the bike forward with simplicity and reliability. Brakes, often found on the rear wheel and controlled by levers on the handlebars, ensure effective stopping power. Additionally, the saddle, or seat, is mounted on the seatpost and is usually lower and smaller, allowing for greater maneuverability. Understanding these basic parts and their locations helps in maintaining and optimizing the BMX bike’s performance.

Fixed gear bike parts diagram

Fixed gear bike parts include essential components designed for simplicity, efficiency, and direct control, ideal for urban commuting and track cycling. The frame, located at the core, provides the structural foundation and is typically lightweight and streamlined. Attached to the frame are the wheels, which include rims, spokes, and hubs, essential for smooth and efficient movement. The handlebars, positioned at the front, can vary in style (drop bars or flat bars) and are connected to the fork, which holds the front wheel. The drivetrain, comprising pedals, cranks, chain, and a single cog, is situated in the middle and drives the bike forward without the option to coast, meaning the pedals are always in motion when the bike is moving. Brakes, if included, are usually found on the front wheel and controlled by levers on the handlebars, although some fixed gear bikes rely solely on the rider’s ability to resist pedal motion to slow down. Additionally, the saddle, or seat, is mounted on the seatpost and provides a comfortable riding position. Understanding these basic parts and their locations helps in maintaining and optimizing the fixed gear bike’s performance.

Peloton bike parts diagram

Peloton bike parts include essential components designed for high-performance indoor cycling, providing users with a seamless and interactive workout experience. The frame, located at the core, provides a sturdy and stable foundation, ensuring durability and balance during intense workouts. Attached to the frame are the wheels, which include a flywheel in the front, crucial for smooth and consistent resistance. The handlebars, positioned at the front, are adjustable and connected to the stem, allowing users to customize their riding position and access the touchscreen display for interactive classes. The drivetrain, comprising pedals, cranks, and a belt drive, is situated in the middle and drives the bike forward with quiet and efficient motion. The resistance knob, located near the handlebars, allows users to adjust the intensity of their workout easily. Brakes, integrated into the flywheel system, provide smooth stopping power and resistance control. Additionally, the saddle, or seat, is mounted on an adjustable seatpost, offering comfort and proper positioning for riders of all sizes. Understanding these basic parts and their locations helps in maintaining and optimizing the Peloton bike’s performance.

Here’s a detailed labeled diagram of a typical Peloton bike showing all key parts.

Peloton bike parts diagram

Bike Frame

The bike frame is the main structural component of a bicycle, serving as the foundation to which all other parts are attached. Its primary purpose is to provide a sturdy and stable structure that supports the rider and connects the bike’s components, such as the wheels, handlebars, seat, and drivetrain. The frame plays a crucial role in determining the bike’s overall geometry, handling characteristics, and weight distribution, impacting ride quality and performance.

Common materials used for bike frames include aluminum, steel, titanium, and carbon fiber. Each material has its advantages as shown below.

  1. Aluminum: Lightweight, affordable, and resistant to corrosion, but may offer a stiffer ride.
  2. Steel: Durable, offers a smooth ride due to its natural flex, but is heavier and prone to rust if not properly treated.
  3. Titanium: Combines the best properties of aluminum and steel, being lightweight, strong, and corrosion-resistant, but is more expensive.
  4. Carbon Fiber: Extremely lightweight and can be engineered for specific performance characteristics, but is typically the most expensive and can be less durable under impact.

The cost of a bike frame can vary widely depending on the material, brand, and design, ranging from around US $200 for basic aluminum frames to several thousand dollars for high-end carbon fiber or titanium frames.

The lifespan of a bike frame depends on the material and usage. Aluminum frames typically last between 5,000 to 10,000 km (3,000 to 6,000 miles) or around 3 to 5 years of regular use. Steel frames can last much longer, often 20 years or more with proper care and maintenance. Titanium and carbon fiber frames can also last a long time, with carbon fiber frames typically lasting around 10,000 to 15,000 km (6,000 to 9,000 miles) or about 5 to 7 years, while titanium frames can last a lifetime if not subjected to severe impacts or damage.

Regular inspection and maintenance are essential to ensure the longevity of any bike frame, regardless of the material, and to identify any potential issues early.

FeatureRoad Bike FrameMountain Bike FrameGravel Bike Frame
PurposeSpeed and efficiency on paved surfacesDurability and control on rough terrainsVersatility and endurance on mixed terrains
RolesEnhances performance and responsivenessIt provides stability and shock absorptionOffers comfort and control over varying surfaces
Common MaterialsCarbon fiber, aluminum, titaniumAluminum, carbon fiber, steelSteel, aluminum, titanium, carbon fiber
Cost$200 to several thousand dollars$300 to several thousand dollars$400 to several thousand dollars
Lifespan5,000 to 15,000 km (3 to 9 years)Often 20 years or more with proper maintenanceTypically 10,000 to 20,000 km (6 to 12 years)

Road bike frames

Road bike frames are designed for speed and efficiency on paved surfaces, typically constructed from lightweight materials such as carbon fiber, aluminum, or titanium, with aerodynamic geometry and a focus on stiffness and weight reduction to enhance performance and responsiveness.

Mountain bike frames

Mountain bike frames are built for durability and control on rough terrains, often constructed from robust materials like aluminum, carbon fiber, or steel, featuring suspension systems, reinforced geometry, and greater shock absorption to withstand impacts and provide stability during off-road riding.

Gravel bike frames

Gravel bike frames are designed for versatility and endurance on mixed terrains, typically constructed from materials like steel, aluminum, titanium, or carbon fiber, featuring relaxed geometry, increased tire clearance, and enhanced comfort for long-distance rides over varying surfaces.

Bike Wheels

Bike wheels are the circular components of a bicycle that enable movement by rolling on surfaces, consisting of rims, spokes, hubs, and tires. Their primary purpose is to provide a smooth and efficient ride, allowing the bike to travel over various terrains. Bike wheels play a crucial role in the overall performance, stability, and handling of a bicycle, impacting factors such as speed, control, and comfort.

Bike Wheels AspectDescription
Types
  • Road Bike Wheels: Designed for speed and efficiency on paved surfaces, typically lightweight and aerodynamic.
  • Mountain Bike Wheels: Built for durability and control on rough terrains, often featuring wider rims and tires for better grip.
  • Gravel Bike Wheels: Versatile and robust, suitable for mixed terrains, combining elements of both road and mountain bike wheels.
  • BMX Wheels: Strong and durable to withstand high impacts from jumps and stunts.
  • Hybrid/Commuter Wheels: A mix of road and mountain bike features, providing durability and efficiency for urban commuting.
Common Materials
  • Rims: Aluminum, carbon fiber
  • Spokes: Stainless steel, aluminum
  • Hubs: Aluminum, steel, carbon fiber
Cost
  • Basic wheels can start at around $50 per wheel for entry-level models.
  • High-end wheels, especially those made from carbon fiber, can cost several hundred to several thousand dollars per wheel.
Lifespan
  • Road bike wheels: 10,000 to 15,000 km (6,000 to 9,000 miles) or about 5 to 7 years.
  • Mountain bike wheels: 5,000 to 10,000 km (3,000 to 6,000 miles) or 3 to 5 years.
  • Regular inspection for wear and tear, especially on rims and spokes, is essential to ensure safety and performance.

Rims

Bike rims are the outer edge of the wheels that hold the tires and provide structural integrity, typically made from materials like aluminum or carbon fiber for a balance of strength, lightweight performance, and durability, essential for supporting the rider’s weight and ensuring smooth rolling.

Spokes

Bike spokes are the thin rods that connect the wheel hub to the rim, usually made from stainless steel or aluminum, providing structural support and stability to the wheel while evenly distributing the rider’s weight and maintaining the wheel’s shape.

Hubs

Bike hubs are the central part of the wheels that house the axle and bearings, made from materials like aluminum or steel, crucial for allowing the wheels to spin smoothly and efficiently while providing a secure attachment point for the spokes and supporting the bike’s weight.

Bike Fork

Bike forks are the components that connect the front wheel to the frame and allow the rider to steer the bicycle. Their primary purpose is to provide a stable connection between the handlebars and the front wheel, enabling precise control and handling. Bike forks play a crucial role in absorbing shocks and vibrations from the road or trail, contributing to a smoother and more comfortable ride.

Bike Fork AspectDescription
Types
  • Rigid Forks: Used on road bikes and some mountain bikes, offering direct and responsive handling.
  • Suspension Forks: Found on most mountain bikes, with built-in shock absorbers for rough terrains.
  • Aero Forks: Designed for road bikes focused on speed and aerodynamics.
  • Gravel Forks: Similar to road bike forks but with additional clearance for wider tires and sometimes equipped with mounts for accessories.
Common Materials
  • Aluminum: Lightweight and affordable.
  • Carbon Fiber: Extremely lightweight, strong, and offers excellent vibration damping.
  • Steel: Durable and provides a smooth ride, though heavier.
  • Titanium: Combines lightweight with strength and durability.
Cost
  • Basic aluminum forks: around $100.
  • High-end carbon fiber forks: several hundred to over a thousand dollars.
Lifespan
  • Aluminum and steel forks: 5 to 10 years or around 15,000 to 20,000 km (9,000 to 12,000 miles).
  • Carbon fiber forks: 5 to 7 years or approximately 10,000 to 15,000 km (6,000 to 9,000 miles).
  • Suspension forks: Servicing every 1,000 to 2,000 km (600 to 1,200 miles); replacement or major servicing every 5 to 7 years.

Bike Handlebar

Bike handlebars are the horizontal bars attached to the front of the bicycle, allowing the rider to steer and control the bike. Their primary purpose is to provide a comfortable and ergonomic grip for the rider, enabling precise handling and maneuverability. The role handlebars play in a bike is crucial for maintaining balance, changing direction, and supporting the rider’s weight distribution for optimal performance and comfort.

Bike Handlebar AspectDetails
Types
  • Drop Handlebars: Common on road bikes, offering multiple hand positions and aerodynamic advantages.
  • Flat Handlebars: Found on mountain and hybrid bikes, providing a wide grip for better control.
  • Riser Handlebars: Used in mountain biking, raised for an upright riding position and improved control.
  • Bullhorn Handlebars: Often seen on track and fixed-gear bikes, extending forward for a more aggressive position.
  • Aero Handlebars: Designed for time trial and triathlon bikes, minimizing wind resistance.
Common Materials
  • Aluminum: Lightweight, affordable, and durable.
  • Carbon Fiber: Extremely lightweight and strong, providing excellent vibration damping.
  • Steel: Durable and provides a smooth ride, though heavier.
  • Titanium: Combines lightweight with strength and durability, often used in high-end bikes.
Cost
  • Basic aluminum handlebars: around $20 to $50.
  • High-end carbon fiber handlebars: $150 to $300 or more.
Lifespan
  • Aluminum handlebars: Typically last 5 to 10 years or around 10,000 to 20,000 km (6,000 to 12,000 miles).
  • Carbon fiber handlebars: 3 to 5 years or approximately 5,000 to 10,000 km (3,000 to 6,000 miles), should be regularly inspected for cracks.
  • Steel handlebars: Can last 10 to 20 years or more with proper maintenance.
  • Titanium handlebars: Often last a lifetime if not subjected to severe impacts or damage.

Bike Stem

Bike stem is the component that connects the handlebars to the steerer tube of the fork, allowing the rider to steer the bicycle. Its primary purpose is to provide a secure and adjustable connection between the handlebars and the bike’s steering system. The role of the stem is crucial for determining the bike’s fit and handling characteristics, as it affects the rider’s posture and comfort.

Bike Stem AspectDetails
Types
  • Threadless Stems: Most common on modern bikes, adjustable and easy to replace.
  • Quill Stems: Found on older and some hybrid bikes, inserted into the steerer tube and secured by a wedge.
  • Aero Stems: Designed for aerodynamic efficiency, often used in time trial and triathlon bikes.
Common Materials
  • Aluminum: Lightweight, affordable, and durable.
  • Carbon Fiber: Extremely lightweight and strong, providing excellent vibration damping.
  • Steel: Durable and provides a smooth ride, though heavier.
  • Titanium: Combines lightweight with strength and durability, often used in high-end bikes.
Cost
  • Basic aluminum stems: around $20 to $50.
  • High-end carbon fiber stems: $100 to $300 or more.
Lifespan
  • Aluminum stems: Typically last 5 to 10 years or around 10,000 to 20,000 km (6,000 to 12,000 miles).
  • Carbon fiber stems: 3 to 5 years or approximately 5,000 to 10,000 km (3,000 to 6,000 miles), should be regularly inspected for cracks.
  • Steel stems: Can last 10 to 20 years or more with proper maintenance.
  • Titanium stems: Often last a lifetime if not subjected to severe impacts or damage.

Bike Seatpost

Bike seatpost is the component that connects the saddle (seat) to the frame of the bicycle, allowing for vertical adjustment to achieve the proper riding height for the rider. Its primary purpose is to support the rider’s weight and provide a comfortable and efficient pedaling position. The role of the seatpost is crucial for bike fit and comfort, as it affects the rider’s posture, power transfer, and overall riding experience.

Bike Seatpost AspectDetails
Types
  • Standard Seatposts: Straight or with setback to adjust saddle position.
  • Suspension Seatposts: Incorporate a suspension mechanism to absorb shocks and vibrations.
  • Dropper Seatposts: Allow on-the-fly height adjustment, commonly used in mountain biking.
  • Aero Seatposts: Designed to be more aerodynamic, used in time trial and triathlon bikes.
Common Materials
  • Aluminum: Lightweight, affordable, and durable.
  • Carbon Fiber: Extremely lightweight and strong, providing excellent vibration damping.
  • Steel: Durable and provides a smooth ride, though heavier.
  • Titanium: Combines lightweight with strength and durability, often used in high-end bikes.
Cost
  • Basic aluminum seatposts: around $20 to $50.
  • High-end carbon fiber seatposts: $100 to $300 or more.
  • Dropper seatposts: $150 to $400 or more.
Lifespan
  • Aluminum seatposts: Typically last 5 to 10 years or around 10,000 to 20,000 km (6,000 to 12,000 miles).
  • Carbon fiber seatposts: 3 to 5 years or approximately 5,000 to 10,000 km (3,000 to 6,000 miles), should be regularly inspected for cracks.
  • Steel seatposts: Can last 10 to 20 years or more with proper maintenance.
  • Titanium seatposts: Often last a lifetime if not subjected to severe impacts or damage.

Bike Saddle

Bike saddle is the seat of the bicycle, designed to support the rider’s weight while providing comfort and stability during rides. Its primary purpose is to offer a secure and comfortable seating position, allowing for efficient pedaling and control. The role of the saddle is crucial for maintaining rider comfort, preventing fatigue, and ensuring proper weight distribution on the bike.

Bike Saddle AspectDetails
Types
  • Road Saddles: Narrow and lightweight, designed for speed and efficiency.
  • Mountain Saddles: Durable and padded for rough terrains, often with a wider shape for comfort.
  • Commuter Saddles: Comfortable and padded, designed for everyday use and shorter rides.
  • Racing Saddles: Ultra-lightweight and minimal padding, designed for competitive cycling.
  • Gel Saddles: Extra cushioning for maximum comfort, often used by recreational cyclists.
Common Materials
  • Leather: Durable and conforms to the rider’s shape over time.
  • Synthetic: Lightweight, weather-resistant, and requires less maintenance.
  • Gel: Provides extra cushioning for enhanced comfort.
  • Carbon Fiber: Lightweight and strong, used in high-end racing saddles.
Cost
  • Basic saddles: $20 to $50.
  • High-end racing saddles: $100 to $300 or more.
  • Gel saddles: $50 to $150.
Lifespan
  • Leather saddles: 5 to 10 years or more with proper care.
  • Synthetic saddles: Typically 3 to 5 years or around 10,000 to 15,000 km (6,000 to 9,000 miles).
  • Gel saddles: 2 to 5 years or around 5,000 to 10,000 km (3,000 to 6,000 miles).
  • Carbon fiber saddles: 5 to 7 years or around 15,000 to 20,000 km (9,000 to 12,000 miles), should be regularly inspected for cracks.

Bike Groupset

Bike groupset is a collection of components that make up the bicycle’s drivetrain and braking system, including parts such as shifters, derailleurs, crankset, chain, cassette, and brakes. Its primary purpose is to enable smooth and efficient shifting and braking, allowing the rider to control speed and cadence effectively. The groupset plays a crucial role in determining the bike’s performance, reliability, and overall riding experience.

Bike Groupset AspectDetails
Types
  • Mechanical Groupsets: Operated by cables, offering reliable and straightforward shifting and braking.
  • Electronic Groupsets: Use electronic signals to shift gears, providing precise and effortless shifting.
  • Hydraulic Groupsets: Typically used for braking, offering powerful and consistent braking performance.
Brands
  • Shimano: Known for reliable and high-quality groupsets across all price ranges.
  • SRAM: Offers innovative and performance-oriented groupsets, popular in both road and mountain biking.
  • Campagnolo: Known for premium road bike groupsets with a focus on performance and aesthetics.
Common Materials
  • Aluminum: Lightweight and durable, commonly used in mid-range groupsets.
  • Carbon Fiber: Extremely lightweight and strong, used in high-end groupsets for improved performance.
  • Steel: Durable and cost-effective, often used in entry-level groupsets.
  • Titanium: Lightweight and strong, occasionally used in high-end groupsets for specific components.
Cost
  • Entry-level groupsets: $200 to $500.
  • Mid-range groupsets: $600 to $1,200.
  • High-end groupsets: $1,500 to $3,000 or more.
Lifespan
  • Entry-level groupsets: Typically last 10,000 to 15,000 km (6,000 to 9,000 miles) or around 3 to 5 years.
  • Mid-range groupsets: 15,000 to 25,000 km (9,000 to 15,000 miles) or around 5 to 7 years.
  • High-end groupsets: 20,000 to 30,000 km (12,000 to 18,000 miles) or around 7 to 10 years, with regular maintenance.

Bike Pedal

Bike pedal is a crucial component of the bicycle’s drivetrain, providing a platform for the rider to transfer power from their legs to the crankset, enabling forward motion and typically available in various types such as flat, clipless, and platform, made from materials like aluminum, steel, or composite for durability and performance.

Bike Drivetrain

Bike drivetrain is the system of components that transmits power from the rider’s legs to the wheels, enabling the bike to move. Its primary purpose is to efficiently convert pedaling energy into forward motion, allowing the rider to control speed and navigate various terrains. The drivetrain plays a crucial role in the overall performance, efficiency, and riding experience of the bicycle.

Bike Drivetrain AspectDetails
Types
  • Single-Speed: Simple and low maintenance, ideal for flat terrain and urban commuting.
  • Multi-Speed: Offers a range of gears for varied terrain, common in road, mountain, and hybrid bikes.
  • Internal Gear Hub: Enclosed gears within the rear hub, providing low maintenance and reliability.
  • Belt Drive: Uses a belt instead of a chain, offering a quieter and cleaner alternative.
Brands
  • Shimano: Known for a wide range of reliable and high-quality drivetrains.
  • SRAM: Offers innovative and performance-oriented drivetrains for both road and mountain biking.
  • Campagnolo: Known for premium road bike drivetrains with a focus on performance and aesthetics.
  • Rohloff: Specializes in internal gear hubs known for their durability and wide gear range.
Common Materials
  • Aluminum: Lightweight and durable, commonly used in mid-range drivetrains.
  • Steel: Durable and cost-effective, often used in entry-level drivetrains.
  • Carbon Fiber: Extremely lightweight and strong, used in high-end drivetrains for improved performance.
  • Titanium: Lightweight and strong, occasionally used in high-end drivetrains for specific components.
Cost
  • Entry-level drivetrains: $100 to $300.
  • Mid-range drivetrains: $400 to $800.
  • High-end drivetrains: $1,000 to $2,500 or more.
Lifespan
  • Entry-level drivetrains: Typically last 5,000 to 10,000 km (3,000 to 6,000 miles) or around 2 to 4 years.
  • Mid-range drivetrains: 10,000 to 20,000 km (6,000 to 12,000 miles) or around 4 to 6 years.
  • High-end drivetrains: 15,000 to 30,000 km (9,000 to 18,000 miles) or around 6 to 8 years, with regular maintenance.

Gears

Bike gears are the components of the drivetrain system that allow riders to adjust the resistance and pedaling effort required, enabling efficient cycling across various terrains and inclines. They include cogs, chainrings, derailleurs, and shifters, and their range and configuration (e.g., 1x, 2x, or 3x setups) significantly impact the bike’s performance, adaptability, and overall riding experience.

Cassettes

Bike cassettes are the cluster of sprockets located on the rear hub of the bicycle, which work with the chain to provide different gear ratios for varying terrain and speed conditions. They come in various sizes and configurations, such as 11-speed or 12-speed, and are essential for smooth shifting and efficient power transfer, directly affecting the bike’s performance and versatility.

Chainrings

Bike chainrings are the toothed rings attached to the crankset, which engage with the chain to convert the rider’s pedaling force into rotational motion, driving the bike forward. Available in various sizes and configurations, such as single, double, or triple setups, chainrings play a crucial role in determining the bike’s gear range and overall efficiency, impacting the rider’s ability to tackle different terrains and maintain optimal cadence.

Derailleurs

Bike derailleurs are mechanisms that move the chain between different sprockets on the cassette (rear derailleur) and chainrings (front derailleur), allowing the rider to change gears smoothly. These components are essential for efficient gear shifting and optimal performance, with popular brands like Shimano, SRAM, and Campagnolo offering a range of options tailored for road, mountain, and gravel biking.

Cranks

Bike cranks are the arms that connect the pedals to the bottom bracket, transferring the rider’s pedaling power to the chainrings, which then drive the bike forward. Available in various lengths and materials like aluminum, carbon fiber, and steel, cranks play a critical role in the bike’s drivetrain efficiency and overall performance, impacting leverage, power transfer, and compatibility with different chainring configurations.

Bottom Brackets

Bike bottom brackets are the bearings and housing that connect the crankset to the frame, allowing the crank arms to rotate smoothly. Positioned at the junction of the bike’s seat tube and down tube, bottom brackets come in various types such as threaded, press-fit, and external bearing systems, significantly affecting the bike’s pedaling efficiency, durability, and maintenance requirements.

Chains

Bike chains are a critical component of the drivetrain, consisting of interconnected links that transfer power from the chainrings to the cassette, propelling the bike forward. Available in various widths and compatibility options such as 9-speed, 10-speed, or 11-speed, chains impact the smoothness of gear shifting, overall drivetrain efficiency, and require regular maintenance for optimal performance and longevity.

Bike Brakes

Bike brakes are mechanical devices used to slow down or stop the bicycle by applying friction to the wheels. Their primary purpose is to ensure the rider’s safety by allowing controlled deceleration and stopping in various riding conditions. The role of brakes in a bike is crucial for maintaining control, navigating obstacles, and preventing accidents.

Bike Brakes AspectDetails
Types
  • Rim Brakes: Apply friction directly to the wheel rim.
  • Disc Brakes: Use a rotor attached to the wheel hub and calipers to apply braking force.
  • Drum Brakes: Enclosed braking mechanism within the hub, less common but very durable.
  • Coaster Brakes: Activated by pedaling backward, often found on children’s bikes and cruisers.
Brands
  • Shimano: Known for reliable and high-quality braking systems across all price ranges.
  • SRAM: Offers innovative and performance-oriented brakes, popular in both road and mountain biking.
  • Magura: Specializes in hydraulic braking systems with high performance.
  • Tektro: Provides cost-effective and reliable braking solutions.
Common Materials
  • Aluminum: Lightweight and durable, commonly used for brake levers and calipers.
  • Steel: Strong and durable, often used in disc brake rotors.
  • Ceramic: Used in high-end brake pads for improved heat resistance and performance.
  • Carbon Fiber: Used in high-performance brake levers and calipers for reduced weight.
Cost
  • Basic rim brakes: $20 to $50 per set.
  • Mid-range disc brakes: $100 to $200 per set.
  • High-end hydraulic disc brakes: $300 to $600 or more per set.
Lifespan
  • Rim brake pads: Typically last 1,000 to 3,000 km (600 to 1,800 miles) depending on conditions.
  • Disc brake pads: Generally last 3,000 to 6,000 km (1,800 to 3,600 miles).
  • Brake rotors: Can last 10,000 to 15,000 km (6,000 to 9,000 miles) with proper maintenance.
  • Brake cables and housing: Typically need replacement every 2,000 to 5,000 km (1,200 to 3,000 miles) or as needed.

Rim brake

Bike rim brakes are a type of braking system that applies friction directly to the wheel rims using brake pads, providing effective stopping power through mechanical leverage. Commonly found on road bikes and older mountain bikes, rim brakes are lightweight, easy to maintain, and typically cost between $20 to $50 per set, though they may wear down the wheel rims over time and require regular pad replacement.

Disc brake

Bike disc brakes are a type of braking system that use a rotor attached to the wheel hub and calipers with brake pads to provide powerful and consistent stopping power. Known for their superior performance in wet and muddy conditions, disc brakes are commonly found on modern mountain and road bikes, with costs ranging from $100 to $600 or more per set, depending on whether they are mechanical or hydraulic systems.

Bike Tires and Tubes

Bike tires and tubes are the components that come into direct contact with the ground, providing traction, shock absorption, and stability to the bicycle. Their primary purpose is to ensure a smooth and efficient ride by adapting to various terrains and conditions. The role of tires and tubes is crucial for maintaining control, comfort, and safety while riding.

Bike Tires and Tubes AspectDetails
Types
  • Clincher Tires: The most common type, with a separate inner tube.
  • Tubular Tires: Used primarily in racing, where the tire and tube are one piece glued to the rim.
  • Tubeless Tires: Do not require an inner tube, providing lower rolling resistance and reduced risk of flats.
  • Slick Tires: Smooth tread, designed for road cycling and providing low rolling resistance.
  • Knobby Tires: Aggressive tread, used for mountain biking to provide better grip on rough terrain.
Brands
  • Continental: Known for durable and high-performance tires.
  • Schwalbe: Offers a wide range of tires for different cycling needs.
  • Michelin: Provides high-quality tires with excellent grip and longevity.
  • Maxxis: Popular in mountain biking for their durable and grippy tires.
  • Vittoria: Known for lightweight and fast-rolling tires, favored by racers.
Common Materials
  • Rubber: Used for the outer tread and sidewalls, providing grip and durability.
  • Nylon: Commonly used in the tire casing for flexibility and strength.
  • Kevlar: Used in high-performance tires for puncture resistance and light weight.
  • Butyl Rubber: Common material for inner tubes, known for its air retention and durability.
Cost
  • Basic tires: $20 to $50 each.
  • High-performance tires: $60 to $120 each.
  • Inner tubes: $5 to $15 each.
Lifespan
  • Road bike tires: Typically last 2,000 to 4,000 km (1,200 to 2,500 miles).
  • Mountain bike tires: Usually last 1,500 to 3,000 km (900 to 1,800 miles) depending on terrain.
  • Tubular tires: Around 2,000 km (1,200 miles) for racing.
  • Tubeless tires: Similar lifespan to clincher tires, but with lower maintenance for flats.
  • Inner tubes: Generally need replacement every 1,000 to 2,000 km (600 to 1,200 miles) or when punctured.

Clincher Tires

Bike clincher tires are the most common type of bicycle tires, featuring a separate inner tube that holds air and a bead that hooks onto the rim, providing a secure fit. Known for their convenience and ease of repair, clincher tires are widely used in road, mountain, and hybrid bikes, offering a balance of performance and affordability, typically costing between $20 to $50 each for basic models and up to $120 for high-performance options.

Tubular Tires

Bike tubular tires, also known as sew-up tires, have the tire and inner tube sewn together into a single unit that is glued directly onto a specially designed rim, offering reduced rolling resistance and improved ride quality. Primarily used in professional racing, tubular tires provide superior performance but require more effort to install and repair, with costs typically ranging from $60 to $120 each.

Tubeless Tires

Bike tubeless tires do not require an inner tube, instead using a tight seal between the tire and the rim to hold air, which reduces the risk of punctures and allows for lower tire pressures to improve traction and comfort. Popular for both mountain and road biking, tubeless tires offer performance benefits such as lower rolling resistance and better handling, with prices generally ranging from $60 to $120 per tire.

Tubes

Bike tubes are the inflatable inner components placed inside clincher tires, made from materials like butyl rubber or latex, that hold air to maintain tire pressure and provide cushioning. Essential for traditional tire setups, tubes are affordable and easy to replace when punctured, typically costing between $5 to $15 each.

Tube Valves

Bike tube valves are the components used to inflate and seal the inner tubes of clincher tires, with the two main types being Presta and Schrader valves. Presta valves, commonly found on road bikes, are narrower and feature a lock nut for secure closure, while Schrader valves, similar to car tire valves, are wider and more robust, with both types typically adding minimal cost to the tube, which ranges from $5 to $15 each.

Bike Shocks

Bike shocks, also known as suspension, are components designed to absorb impacts and vibrations from rough terrain, enhancing ride comfort and control. Their primary purpose is to reduce the strain on the rider and bike by cushioning bumps and shocks, allowing for smoother and safer navigation over uneven surfaces. The role of bike shocks is crucial in maintaining traction, improving handling, and reducing fatigue during off-road and mountain biking.

Bike Shocks AspectDetails
Types
  • Front Suspension (Fork): Commonly used in mountain bikes to absorb impacts on the front wheel.
  • Rear Suspension (Shock): Used in full-suspension bikes to absorb impacts on the rear wheel.
  • Hardtail: Bikes with only front suspension.
  • Full Suspension: Bikes with both front and rear suspension.
Brands
  • Fox: Known for high-performance and durable suspension components.
  • RockShox: Offers a wide range of suspension products for various biking needs.
  • Marzocchi: Renowned for robust and reliable mountain bike shocks.
  • SR Suntour: Provides affordable and quality suspension systems.
Common Materials
  • Aluminum: Lightweight and durable, commonly used for shock bodies and components.
  • Steel: Strong and durable, often used in entry-level shocks.
  • Carbon Fiber: Extremely lightweight and strong, used in high-end shocks for improved performance.
Cost
  • Basic front suspension forks: $100 to $300.
  • Mid-range front and rear shocks: $300 to $700 each.
  • High-end suspension systems: $800 to $1,500 or more each.
Lifespan
  • Front suspension forks: Typically last 10,000 to 20,000 km (6,000 to 12,000 miles) or around 3 to 5 years with regular maintenance.
  • Rear shocks: Generally last 5,000 to 10,000 km (3,000 to 6,000 miles) or around 2 to 4 years, depending on usage and maintenance.
  • Regular servicing and maintenance can extend the lifespan of bike shocks significantly.

Fork shocks

Bike fork shocks, also known as front suspension forks, are designed to absorb impacts and vibrations on the front wheel, enhancing control and comfort on rough terrains. Commonly used in mountain bikes, fork shocks come in various travel lengths and damping systems, with prices typically ranging from $100 for basic models to over $1,500 for high-end options.

Rear shocks

Bike rear shocks, also known as rear suspension, are designed to absorb impacts and vibrations on the rear wheel, providing increased comfort and control on rough terrains. Commonly found on full-suspension mountain bikes, rear shocks come in various configurations and damping systems, with prices typically ranging from $300 for entry-level models to over $1,500 for high-performance options.

Thru Axle

Bike thru axles are robust, bolt-on axles that secure the wheels to the frame and fork, providing enhanced stiffness and stability compared to traditional quick-release skewers. Commonly used in modern mountain and road bikes for improved handling and precise wheel alignment, thru axles typically cost between $20 to $60 each, depending on the brand and specifications.

Quick Release

Bike quick release is a mechanism that allows for fast and tool-free removal and attachment of wheels to the frame and fork, using a lever and skewer system. Popular on many road and mountain bikes for their convenience, quick releases typically cost between $10 to $30 each, making them an affordable and user-friendly option for cyclists.

Bike Headset

Bike headsets are the components that house the bearings, allowing the fork to rotate smoothly within the head tube of the frame, enabling precise steering. Essential for the bike’s handling and stability, headsets come in various types such as integrated, threadless, and threaded, with prices typically ranging from $20 for basic models to over $100 for high-end versions.

Bike Cables

Bike cables are essential components that transmit the rider’s input from the shifters and brake levers to the derailleurs and brakes, ensuring precise gear changes and reliable braking. Typically made of stainless steel or coated materials for durability and smooth operation, bike cables cost between $10 to $30 per set, and regular replacement is necessary to maintain optimal performance.

Bike Bearings

Bike bearings are critical components that reduce friction and allow smooth rotation in various parts of the bike, such as the wheels, headset, bottom bracket, and pedals. Typically made from steel or ceramic for enhanced durability and performance, bike bearings cost between $10 to $50 per set, with high-end ceramic options potentially costing more, and require regular maintenance or replacement to ensure optimal functionality.

Where to buy bike parts?

You can buy bike parts from local bike shops, online retailers, second-hand marketplaces, and directly from manufacturers.

  1. Local Bike Shops: Offer personalized service, expert advice, and immediate availability of parts.
  2. Online Retailers: Provide a wide range of parts with customer reviews and competitive prices.
  3. Second-Hand Marketplaces: Allow you to find used and discounted parts.
  4. Direct from Manufacturers: Offer the latest products and official warranties through their websites.

What is the best online bike parts store?

The best online bike parts stores include Chain Reaction Cycles, Wiggle, and Jenson USA because they offer a wide selection of high-quality components, competitive prices, and reliable customer service. Chain Reaction Cycles is known for its extensive inventory and frequent sales, making it a popular choice for cyclists seeking bargains. Wiggle stands out for its user-friendly website and comprehensive product descriptions, which help customers make informed purchasing decisions. Jenson USA is praised for its fast shipping and excellent customer support, ensuring a smooth shopping experience. However, the best choice ultimately depends on your specific needs, preferences, and location, as shipping times and availability can vary.

Where do bike shops get their parts?

Bike shops get their parts from wholesalers, manufacturers, distributors, and direct suppliers.

  1. Wholesalers: Bike shops purchase parts in bulk from wholesalers who offer a wide range of products at discounted prices.
  2. Manufacturers: Directly sourcing from manufacturers ensures access to the latest components and often comes with better pricing and official warranties.
  3. Distributors: Distributors act as intermediaries between manufacturers and bike shops, providing a consistent supply of parts and managing logistics.
  4. Direct Suppliers: Some bike shops establish relationships with direct suppliers who provide specialized or high-demand components tailored to the shop’s needs.

Are bike parts universal?

No, bike parts are not universal because different bikes have varying specifications, standards, and designs that require specific components to ensure compatibility and optimal performance. Variations in sizes, threading, mounting standards, and material properties mean that parts often need to match the particular brand, model, and type of bicycle.

Are mountain bike parts universal?

No, mountain bike parts are not universal because different bikes have varying specifications, standards, and designs that require specific components to ensure compatibility and optimal performance. Differences in suspension systems, frame geometries, wheel sizes, and mounting standards mean that parts often need to be matched to the specific brand, model, and type of mountain bike.

Is it cheaper to build a bike from parts?

Yes, it can be cheaper to build a bike from parts because you have the flexibility to shop for deals and choose components that fit your budget, but it requires time, knowledge, and sometimes specialized tools, and there may be hidden costs such as shipping and unexpected compatibility issues.

Is building a bike from used parts cheaper?

Yes, it can be cheaper to build a bike from used parts because used components are often sold at a fraction of the cost of new ones, but it requires careful inspection for wear and damage, and there may be additional costs for maintenance or replacement of worn-out parts.

Can you use WD40 on bike parts?

Yes, you can use WD40 on bike parts if you need to clean or displace moisture from components like chains or derailleurs because it can effectively remove dirt and prevent rust, but it is not a suitable long-term lubricant and should be followed by proper bike-specific lubrication for optimal performance and protection.

Does a carbon fiber bike part use different tools?

Yes, carbon fiber bike parts may require different tools because they are more sensitive to torque and stress, necessitating the use of torque wrenches to ensure bolts are tightened to precise specifications, but general bike tools can still be used for most installation and maintenance tasks.

How often do bike parts need to be replaced?

Bike parts need to be replaced at varying intervals depending on their usage and wear, because different components have different lifespans, but regular inspection and maintenance can help extend their life. Generally:

  1. Chains: Every 3,000 to 5,000 km (1,800 to 3,000 miles)
  2. Cassette: Every 8,000 to 10,000 km (5,000 to 6,000 miles)
  3. Chainrings: Every 15,000 to 20,000 km (9,000 to 12,000 miles)
  4. Brake Pads: Every 2,000 to 4,000 km (1,200 to 2,500 miles)
  5. Tires: Every 3,000 to 5,000 km (1,800 to 3,000 miles)
  6. Cables: Every 5,000 to 10,000 km (3,000 to 6,000 miles)
  7. Bearings: Every 10,000 to 15,000 km (6,000 to 9,000 miles)

These intervals can vary based on riding conditions, maintenance, and component quality.

Where to sell used bike parts?

You can sell used bike parts through online marketplaces, local bike shops, cycling forums, social media groups, and garage sales.

  1. Online Marketplaces: Websites like eBay, Craigslist, and Facebook Marketplace allow you to list and sell bike parts to a wide audience.
  2. Local Bike Shops: Some bike shops buy or accept trade-ins of used parts, especially if they specialize in repairs and custom builds.
  3. Cycling Forums: Online communities and forums dedicated to cycling often have classified sections where members can buy and sell parts.
  4. Social Media Groups: Platforms like Facebook have groups specifically for buying and selling bike parts locally or regionally.
  5. Garage Sales: Selling parts at a garage sale or local swap meet can attract local buyers who prefer to inspect items in person before purchasing.

How do you sell bike parts?

To sell bike parts, you need to clean and inspect the parts, take clear photos, determine the value, choose a selling platform, create a detailed listing, post the listing, communicate with potential buyers, arrange payment and delivery, complete the sale, and follow up.

  1. Clean and inspect the parts to ensure they are free from dirt, grease, and any damage or wear.
  2. Take clear photos using good lighting to show each part from multiple angles, highlighting any unique features or damage.
  3. Determine the value by researching similar parts online and considering the condition of your parts when setting a price.
  4. Choose a selling platform such as online marketplaces, local bike shops, cycling forums, social media groups, or garage sales.
  5. Create a detailed listing with a clear description, including brand, model, condition, specifications, price, and contact information.
  6. Post the listing by uploading your photos and description to the chosen platform, ensuring it is complete and accurate.
  7. Communicate with potential buyers promptly, be prepared to negotiate the price if necessary.
  8. Arrange payment and delivery, agreeing on a payment method and ensuring parts are securely packaged if shipping.
  9. Complete the sale by confirming receipt of payment and shipping the parts or meeting the buyer for local pick-up.
  10. Follow up to ensure the buyer is satisfied with their purchase and address any issues promptly to maintain a good selling reputation.
How do you sell bike parts online?

To sell bike parts online, you need to create detailed listings with clear photos and descriptions on chosen platforms, then manage communication, payment, and shipping processes efficiently. This involves accurately describing the parts’ condition, setting a fair price, promptly responding to inquiries, and ensuring secure packaging and timely delivery to maintain a good reputation.

Where are Shimano bike parts made?

Shimano bike parts are primarily made in Japan, Malaysia, and Singapore, with manufacturing facilities established in these countries since the 1970s to support their extensive production and global distribution.

Where are Sram bike parts made?

Sram bike parts are made in various locations, including the United States, Germany, and Taiwan, with manufacturing facilities established to support their global production and distribution network.

Why is there a shortage of bike parts?

There is a shortage of bike parts because the COVID-19 pandemic, starting in early 2020, led to increased demand for bicycles as more people turned to cycling for exercise and transportation, while simultaneously disrupting global supply chains and manufacturing operations.

How long should a bike manufacture legacy parts?

A bike manufacturer should provide legacy parts for a period of 5 to 10 years after a model is discontinued, though the specific period can vary for different parts based on their importance and wear rate.

PartAvailability Period
Frames10 years
Forks10 years
Drivetrain Components (e.g., derailleurs, cassettes)7 to 10 years
Brake Components7 to 10 years
Suspension Components7 years
Wheels and Hubs5 to 7 years
Handlebars and Stems7 to 10 years
Saddles and Seatposts7 to 10 years
Cables and Housing5 years

How long should a bike manufacture legacy parts